《TABLE VIIIEFFECT OF SUGGESTED DISTURBANCE ON MPPT AND INVERTER EFFICIENCIES》

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《Power Quality Assessment of Voltage Positive Feedback Based Islanding Detection Algorithm》

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The average MPPT efficiency，i.e.，the ratio of DC link power to the PV array power as well as the inverter efficien‐cy，i.e.，the ratio of AC output active power to the PV array power，for the sample GCPVS equipped with the proposed algorithm at various irradiance levels have been measured.What can be inferred from the provided data in Table VIII is that the presented disturbance has little influence on the DG’s efficiency，since MPP can be accomplished at a small bound around ref as the same as other MPPT algorithms.Hence，besides effective islanding detection，a high efficien‐cy is guaranteed in normal operational mode.In addition，since the disturbance of VPF algorithm has been employed in the current controller of the inverter，it does not change the MPPT operation and efficiency.